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Chemical reactions in which, a single substance splits up into two or more simpler substances are called decomposition reactions. These reactions are carried out by energy, supplied by different sources. The required energy can be supplied by heat (thermolysis), electricity (electrolysis), or light (photolysis). Let’s talk about photolysis reactions (not photosynthesis): Photolysis (also called photodissociation and photodecomposition) is a chemical reaction, in which a chemical (an inorganic or an organic) is broken down by photons and is the interaction of one or more photons with one target molecule. The photolysis reaction is not limited to the effects of visible light, but any photon with sufficient energy (higher than the dissociation energy of the targeted bond) can cause the chemical transformation of the said (inorganic or organic) bond(s) of a chemical. Since the energy of a photon is inversely proportional to the wavelength, electromagnetic waves with the energy of visible light or higher, such as ultraviolet light, X-rays, and γ -rays, can also initiate photolysis reactions. Like all other peroxides, hydrogen peroxide (H2O2) also consists of a relatively weaker O−O bond, which is susceptible to light or heat. The net equation for the reaction is: 2H2O2⟶2H2O+O2 The step-wise reaction mechanism is suggested as follows (Ref.1): H2O2+hν⟶2HO∙ HO∙+H2O2⟶HO−O∙+H2O HO−O∙+H2O2⟶2HO∙+H2O+O2 Using isotope studies it was confirmed that the O2 formed is cleanly derived from H2O2 (Ref.2). Notes: The rate increases rapidly in the presence of catalysts such as MnO2 and KI (Ref.2). The rate of decomposition is slow at room temperature, but it increases with temperature. It is believed to be due to thermal decomposition of H2O2, which seemingly accelerates the photolysis (Ref.3). References: 1.J. P. Hunt, H. Taube, “The Photochemical Decomposition of Hydrogen Peroxide. Quantum Yields, Tracer and Fractionation Effects,” J. Am. Chem. Soc. 1952, 74(23), 5999–6002 (https://doi.org/10.1021/ja01143a052). 2.A. E. Cahill, H. Taube, “The Use of Heavy Oxygen in the Study of Reactions of Hydrogen Peroxide,” J. Am. Chem. Soc. 1952, 74(9), 2312–2318 (https://doi.org/10.1021/ja01129a042). 3.F. O. Rice, M. L. Kilpatrick, “The Photochemical Decomposition of Hydrogen Peroxide Solutions,” J. Phys. Chem. 1927, 31(10), 1507–1510 (https://doi.org/10.1021/j150280a004). Interestingly, as early as 1934 Haber and Weiss (Ref. 1) proposed that HO2∙ is formed in the decomposition of hydrogen peroxide. The subsequent reaction of the transient superoxide radical anion with hydrogen peroxide has been determined to also form the hydroxyl radical (Ref. 2). The higher pH version of the last reaction is, therefore, best represented as: O2∙−+H2O2⟶2HO∙+OH−+O2 And as H++OH−=H2O, the net product formation is not altered. However, alkaline H2O2 is well known to be less stable than acidic hydrogen peroxide (Ref.3) even in absence of light exposure, which accelerates its decomposition (which can involve radical pathways) liberating oxygen! References: 1.Haber Fritz and Weiss Joseph, 1934, The catalytic decomposition of hydrogen peroxide by iron salts. Proc. R. Soc. Lond. A 147: 332–351 http://doi.org/10.1098/rspa.1934.0221 2.TOSHIHIKO OZAWA, AKIRA HANAKI, Reactions of Superoxide with Water and with Hydrogen Peroxide, Chemical and Pharmaceutical Bulletin, 1981, Volume 29, Issue 4, Pages 926-928. https://doi.org/10.1248/cpb.29.926 3.https://www.researchgate.net/figure/Effect-of-pH-on-the-decomposition-of-hydrogen-peroxide-H-2-O-2-0-800-mg-l_fig1_234110563, from Yazıcı, Ersin & Deveci, Haci. (2010). Factors Affecting Decomposition of Hydrogen Peroxide. https://doi.org/10.13140/RG.2.1.1530.0648.
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The best quality cannabis I have grown so far. Sweet and smooth with a mellow, balanced and creative high. Nuggs look amazing after 12 days curing. Shame I don't have any more seeds, will def grow again. RQS done a great job. 123 Gram of top quality bud and 32 Gram of trim for hash. Sincere thanks to the grow diaries community. In just over a year I have learned enough to grow top quality medicine at a fraction of what I would normally pay. Plus, it's such an interesting hobby! I will continue giving to this great community. This plant is mother nature's gift to us all.
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Eccoci qui siamo alla fine ciclo fantastico!!
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@TacoKart
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Experiencing problems with temperature being too high and added a large fan and keeping the tent open to control the heat. The plants are showing signs of heat stress. Moved the trellis down into the plant defoliated quite a lot and setup the canopy. About to move to flower once it all fills out nicely. Still have a heat problem that needs to be managed but I keep on putting it off. Flushed just some ph'd water until the runoff was around 6 ph. I lost a lot of the pictures I was taking due to a SD card corruption but I still have the time lapse photos and pictures of the trim lol this timelapse is probably my favorite!
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@NanoLeaf
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End of Week 11 (Fourth week of flower) The ladies are frosting up more and more by the day and there are trichomes everywhere! I Added about 8g per plant of GHF BioBloom and a cup of worm castings a small final feed to make sure the ladies have what they need to grow big dense buds. And increased the CO2 to 1400ppm and in 2 weeks time I will cut the CO2. The main top-sites are bulking up more and I am very happy with the inter-nodal spacing as well as the bud formation. Trying to keep the training to a bare minimum and ONLY removing fan leaves that are blocking bud sites. I have been keeping a cooler average temperature - and also keeping the relative humidity lower. Pest Report: None
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21/12/20 inicio de semana esta pequeña esta ermosa al contrario que su hermana que estoy cultivando muestra otro feno esta mas como un pino esta estirando pero muy uniformem 23/12/20 62 cm de altura 27/12/20 cierre de semana
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Monday It’s beginning of week 4 and they are doing pretty well. The main stems are hard and strong and it’s impossible to bend them at that point. I am practicing a very light hand LST everyday like I am showing in the video. Tuesday Watering for both of them , you can follow the (simple) process in the videos. The plants are doing great except for a little issue on one of them that I will show you tomorrow. Topping or not ? May be beneficial so I’m about to do it. Fiming maybe ? Thursday Topping on video ! Simple method
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@Hashy
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******************************************** Week 10 mid flower (week 4 flower) ******************************************** Light cycle=12/12 Light Power=180w 75% Extractor controller settings (during lights on). High temp= 26c Temp step=0c High Rh= 54% Rh step=0% Speed max=10 Speed min=3 Extractor controller settings (during lights off). High temp= 21c Temp step=0c High Rh= 58% Rh step=0% Speed max=10 Speed min=3 Smart controller settings (during lights on). Lights on=9.00am Radiator on= -22.5c Radiator off=+23.0c Top fan on= Smart controller settings (during lights off). Lights off=9.00pm Radiator on=-18.5c Radiator off=+19.0c Top fan on VPD aim=0.9-1.4 DLI aim=30-35 EC aim=0.8-1.5 PH aim=6.0-6.5 💧💧💧💧💧💧💧💧💧💧💧💧💧💧💧💧 NPK= 8-17-26 Method= Automatic Feed=Flower nutes Neutralise=0.1ml/L Plagron bloom=4ml/L Plagron Power buds=1ml/L Green Sensation=1ml/L Easy Ph Up=0.021ml/L (1ml=23 drops, each drop is 0.043ml) Ec=1.55 PH=6.2/6.0 Runs=18 Run times=4mins (L/L each) Gap times=16 mins Total runtime=72mins(L/L each) Total flowrate= ml/min(ml/min each) Auto start time=10.00am Auto stop time=15.44pm 💧💧💧💧💧💧💧💧💧💧💧💧💧💧💧💧 ******************************************** ******************************************** 📅8/12/24 Sunday (Day 64)(flower day 24) 📋 💧 Automatic mid bloom nutes Ec=1.55 PH=6.2/6.0 Volume=10L Volume left=1.25L Volume used=8.75L(ml/min) Volume each=4.37L(ml/min) Runoff. Total runoff=1.1L Ec=3.5 PH=/6.1 💧 📅9/12/24 Monday (Day 65)(flower day 25) 📋 HST, broke a main cola and hopefully fixed it. 📅10/12/24 Tuesday (Day 66)(flower day 26) 📋 Raised scrog net slightly and adjusted cola positions. Slight light bleaching on the very tops so lowered power to 160w. 📅11/12/24 Wednesday (Day 67)(flower day 27) 📋 📅12/12/24 Thursday (Day 68)(flower day 28) 📋 💧 Automatic mid bloom nutes Ph up=0.231ml, 6 drops Ec=1.55 PH=6.2/6.0 Volume=11L Volume left=2L Volume used=9L(ml/min) Volume each=4.5L(ml/min) Runoff. Total runoff=0.4L Ec=3.25 PH=/6.3 💧 📅13/12/24 Friday (Day 69)(flower day 29) 📋H=90cm D=16cm Dli=ppfd= Raised light H=90cm D=25cm Dli=ppfd=46.8 📅14/12/24 Saturday (Day 70)(flower day 30) 📋H=90cm D=25cm Dli=46.8 ppfd=1080 ******************************************** Weekly roundup. 📋 Looks like she has finished stretching now, she looks nice and healthy, she has a good amount of spacing between the colas. 22.4kw rad Temps were a bit better this week so the radiator only used 22.4 kw £5.60 Take it easy. Back soon. ********************************************
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@Grey_Wolf
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Ginger Nut Cookies & Aussie Music Videos Fastbuds GSC x Barneys Red diesel 6 weeks of flowering completed 9th April 2020 Hi Everyone I hope you are all feeling well and keeping busy during the lockdown. It's raining cats and dogs here (lucky there's no chinese around LMFAO) and the humidity is 100% so today Ive chopped this little lady down and she is now drying up in my shed with fans going 24/7. I was quite pleased with the amount of bud I got off her and it's smelling fantastic and is very sticky.The trichomes were very milky with a few amber as well. 😍 very easy to grow no fuss and no problems but we'll have to wait and see as to whether she is a good smoke or not . Now for this weeks Aussie Music videos 👊 Because we are almost at the end of this grow I thought I had better add a few extra songs this week to make sure I get a decent selection of Diffrent music videos for you all to check out. So for this weeks selections I chose Empire of the Sun 👊 Walking on a Dream https://youtu.be/eimgRedLkkU Big Pig 👉 (from Bill n teds excellent adventure) 👊 I can't break away https://youtu.be/f_rfXVdYelA Peking duk 👊 Reprisal https://youtu.be/4GboBAg2Syo The white stripes 👊 Seven nation army https://youtu.be/0J2QdDbelmY Grinspoon 👊 Chemical Heart https://youtu.be/58mXxWuUqYw The hilltop hoods 👊 Leave my lonely https://youtu.be/yKifJ4Q5ph0 And Silverchair 👉Not bad for a bunch of 16yr olds which they were at the time this video was made https://www.youtube.com/watch?v=RZD982yrmx4 The Next update will be the Final harvest update with the dried n trimmed buds etc. I will also have to add another heap of tunes in that I had wanted to play , so keep an eye out for my next Update of Ginger Nut Cookies & Aussie Music videos .😀 Until then Stay safe and Keep lit And we'll all get thru this Together 🙏 👍
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@Sup3rNov4
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Wonka has bounced back will lots of energy finally it’s happy not to long left on her the fattening should start any day now The fattening has begun Found a dam spittle bug on the bottom leaf this morning poor bugger picked the wrong plant, the little blighter was higher than me. Checked Wonka over it was just the one for now and it was located on a small leaf so no damage to worry about but spring is officially a go!
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Dane, We all should help one another. Human beings are like that. We should live by each other’s happiness - not by each other’s misery. We don’t want to hate and despise one another, share the Joint. And mother earth is rich and can provide for everyone. We can Grow enough Happiness, In this paradise, there is room for everyone. We only exist to bring joy into the world and The way of life can be free and beautiful, but we have lost the way. Grow High and Give the world A smile. At the end we own nothing more then all our memories, lets make them amazing for everyone, nothing to loose only everything to win. A last kiss goodby, a second one, softer and long as a sign, that you are woth it. That Everyone worth who loved and give. Enought Hippie Talk, now have a nice day and an even better grow, thx for watching by. ((From Clone 🌿 week report: (21 cut her down a litte bit.
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These girls are only about 13 days old and younger looking great so far.
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@Cali_Rayy
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Ready to see what this strain can do I like the fact FB420 hast released any pictures of flowers yet kinda leaves it in suspense. Will be updating soon
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If you are lonely when you are alone, then you are in bad company. Bee pollen is considered a “vitamin bomb” due to the presence of almost all vitamins with an average of 0.02–0.7% of its total content, with a higher amount of water-soluble than fat-soluble vitamins. Bee pollen contains vitamins A, D, E, B1, B2, B6, and C. It also provides minerals such as calcium, magnesium, phosphorus, potassium, zinc, copper, manganese, iron, and selenium, I mixed a bunch of that with some honey and RAW cane molasses to make a nice big bucket of tea. A family friend who is a beekeeper was kind enough to share some honey. The nutritional content of raw honey is impressive and includes high levels of protein, amino acids, B vitamins, calcium, manganese, potassium, magnesium, zinc, and iron, as well as various polyphenolic antioxidants. I am loading up nature's finest sugars, and sweet things, Honey & Mollases. UV-B-induced DNA damage (CPDs and 6–4 PPs) can be repaired efficiently by photolyases. Pyrimidine dimers can be repaired by nucleotide excision repair (NER), or bypassed by replicative polymerases (Britt 2004). The expression of the CPD photolyase (PHR) gene is induced by UV-B light dependent on UVR8 signaling pathway, and is also induced by blue and UV-A light (Li et al. 2015) https://link.springer.com/article/10.1007/s44154-022-00076-9?fromPaywallRec=true Old but gold. The camera picks up far more light than there is during the night cycle, camera is showing bright pink violet collages but my eyes barely see a thing, about 0.25ppfd in that tent overnight. Have been tweaking the spectrum of moonlight/intensity and watching the responses overnight. Tweak, tweak, tweak all week. PAR is 400-700nm, Overnight UVA in the tent is all 365nm and 385nm, so the meter only picks up a fraction of the light curve that makes it photosynthetically active past 400nm. Of the light in the tent, 0.25ppfd is from UVA Looks like It makes them 🕺 🕺 💃 all night. Better flower soon or ill be screwed for space, they are stretching, but is it "the stretch"? She has fire in her belly. Growing crops with insufficient light (i.e., below “optimal,” as defined here) limits the yield potential, which in turn wastes the other production inputs including labour, water, nutrients and electricity. As lighting fixture is one of the most expensive investment of the production, what is the relationship between light intensity and yield? Potter and Duncombe (2012) grew cannabis plants with varying canopy-level PPFDs during the flowering stage and found that increasing PPFD from 400 to 900 μmol·m−2·s−1 increased yield an average of 1.3 times higher, across seven cultivars, with no light intensity treatment effects on floral cannabinoid concentrations. Vanhove et al. (2011) found that cannabis yields were 1.3 to 3.1 times higher (depending on cultivar) when plants were grown under approximately 1000 μmol·m−2·s−1 compared to approximately 450 μmol·m−2·s−1 during the flowering stage.It was predicted that cannabis yield would exhibit a saturating response to increasing Light intensity, thereby signifying an optimum light intensity range for indoor cannabis production. However, a new research from Morrison (2021), after 81 days‘ experiment, found that When plants grew under LI ranging from 1200 to 1800 μmol·m–2·s–1 provided by light emitting diodes (LEDs), inflorescence yield increased linearly as LI increased up to 1800 μmol·m–2·s–1. "Cannabis will not stop flowering if the lights are turned on for a few minutes once or twice during the 2-month-long flowering cycle. If a light is turned on for 5 to 30 minutes—long enough to disrupt the dark period—on 3 to 5 con­secutive nights, plants will start to revert to vegetative growth." "Less than one half of one foot-candle of light (0.1ppfd) from sunlight will prevent cannabis from flow­ering. That is a little more light than is reflected by a full moon on a clear night. Well-bred indica-dominant plants will revert within three days. Sativa-dominant plants take four to five days to revert to vegetative growth. Once they start to revegetate, it can take from four to six ad­ditional weeks to induce flowering again!" Guess ill find out my answer soon.
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🌿✨ Mentha De Croco | Week 15 from Seed – Week 4 of Flower ✨🌿 There’s beauty in the unusual, and this week our Mentha De Croco girls are proving that in every single detail. Each plant is its own world — one-of-a-kind leaf formations, swirling mutant expressions, and colors and shapes that are nothing short of botanical art. As week 4 of flower unfolds, the garden is alive with personality. These ladies aren’t rushing, they’re revealing themselves in layers, and that’s the magic of growing mutant lines. You don’t control the show, you watch it evolve. Feeding This Week | Aptus Holland Mineral Line (Clean Program): • Regulator → 0.15 ml/L (always first in the mix) • System Clean → 0.25 ml/L • RO Water Conditioner → 0.8 ml/L • All-in-One Liquid → 2 ml/L 💧 Reservoir Stats: • pH: 6.1 • EC: 1.32 • Water Temp: 19.7°C They’re thriving under the steady hands of the Future of Grow LEDs, all finely tuned and orchestrated by the precision of Trolmaster. Light levels remain strong, encouraging the girls to stretch and start packing structure for what’s to come. And those leaves, oh, those leaves! Some twist like ribbons, others spread like wide fans. This is what happens when nature gets a little wild and you let it speak. ⸻ 🙏 Shoutouts, Love & Gratitude: • To @terpyz_genetics, for crafting these magical, mutated gems • To @aptus_holland, for the cleanest, sharpest feeding program a grower could ask for • To @trolmaster.agriculture, for total room control • To @futureofgrow, lighting the path forward • To the Grow Diaries fam, and the whole community — thanks for being part of this journey, one mutant leaf at a time 💚 This week, we’re not just feeding plants — we’re feeding curiosity, patience, and wonder. #MutantGenetics #MenthaDeCroco #Week4Flower #GrowersLove #AptusHolland #TerpyzGenetics #FutureOfGrow #Trolmaster #FreaksGrowBeautiful 📲 Don’t forget to follow the journeys on Instagram and YouTube — always sharing the love and the lessons 🌍 Genetics - Mentha De Croco Nutrition - @aptusholland https://aptus-holland.com/ Led Power @ F.O.G. Future Of Grow https://www.thefuturofgrow.com/en/online-store/BLACK-SERIES-600-p489093171 Controls @ TrolMaster https://www.trolmaster.eu/tent-x Let’s see what next week brings! 🚀 As always thank you all for stopping by, for the love and for it all , this journey of mine wold just not be the same without you guys, the love and support is very much appreciloved and i fell honored with you all in my life With true love comes happiness Always believe in your self and always do things expecting nothing and with an open heart , be a giver and the universe will give back to you in ways you could not even imagine so As always, this is shared for educational purposes, aiming to spread understanding and appreciation for this plant. The journey with nature is one of discovery, creativity, and respect. Let’s celebrate it responsibly and continue to learn and grow together! Growers Love To you All 💚
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Purple colors coming in fast. Night temps get pretty low. The lack of nitrogen in feeding is really starting to show. Such potent terpenes from this girl. Super loud smells. Strong gas, sweet cotton candy sugar, cream, new shoe smell, and skunk. Trichome production is insane! The UV light does not disappoint.
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@SooSan
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90x60x140 (Mars Hydro) FC-E4800 (Mars Hydro) Easy2go Aquavalve5 (Autopot) Living Soil (Demetearth) Bruce Banner (PEV Seed) Gorilla GG4 (Ganja Farmer) Cream Caramel (Sweet Seed) Gorilla Gelato (Ganja Farmer) Blueberry (00 Seed) Kalini Asia (Zamnezia) Biscotti Mintz (Barney's Farm) Blackberry Cake (Sensi Seed) Amsterdam Amnesia (Dutch Passion) Gelato Cookie (Ganja Farmer) Purple OG Punch (Ganja Farmer) Sweet ZZ (RQS) Rainbow Road (Paradise Seed) Substrat ~50L: 30L Super Light Mix Biotechnologie 18L coco 2L perlite 1,7kg lombricompost 350g guano de chauve-souris 350g Zéolithe 350g Basalte 170g guano vers de farine 170g biochar 0,7g Endomychorise glomus intraradices 0,7g Bacillus Amyloliquefaciens Paillage de luzerne alfalfa Arrosage avec 2ml/L de mélasse de canne 1x par semaine Pulvérisation avec 1% d’huile de neem
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@Tckfui
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Everyone's looking good! Sprayed with em1 amd some regalia and thermx70 yesterday. Added some q, recharge, silicablast and calmag to the res with 3 gallons of water. Otherwise the res has been on autopilot with the dehumidifier reading at 7.1 ph and 30ppm 2 of the inhouse plants are still throwing some sacs but nothing too crazy.
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Week 7 had its share of temperatures variations . Combined with my lack of cfl bulb distance from buds knowledge had the tips of the calix turn light yellow and caused the pistils to turn orange at the tip. No serious harm done but this is how you become a better grower and getting to know how different phenotypes react to environmental changes and adaptation. Luckily for me the ruderalis genes in the blue dream matic from fastbuds makes her pretty resistant to stress and traumatic “mistakes “ cause you got real high one night and decided that defoliation would be great right now 👍🏻